Airtac SAI63 Standard Cylinder SAI63X825N
The AirTAC Airtac SAI63 Standard Cylinder SAI63X825N is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 825mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke825 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X825N
The AirTAC SAI63X825 is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. Featuring an 825 mm stroke, it is designed for operations requiring substantial linear reach within a standardized mounting envelope.
This unit incorporates an extruded aluminum barrel with sensor grooves on both sides, though adding a magnet (-S suffix) is required to utilize CMSE or DMSE switches. It comes equipped with a standard carbon steel piston rod and NBR seals, making it a robust choice for general industrial pneumatics.
Airtac SAI63 Standard Cylinder SAI63X825N Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X825N |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 825 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI63 Standard Cylinder SAI63X825N
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×825 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI63 Standard Cylinder SAI63X825N Is Used
Long-Reach Diversion
Actuates large routing gates on wide conveyor lines where an 825 mm extension is needed to redirect heavy pallets.
Automated Press Feed
Pushes raw material sheets into a stamping press over an extended distance, utilizing 1559 N of thrust at 0.5 MPa.
Large Door Actuation
Opens and closes substantial industrial machine enclosure doors requiring a long linear throw and steady double-acting operation.
Is the Airtac SAI63 Standard Cylinder SAI63X825N the Right Cylinder?
Selecting this bore is appropriate when 0.5 MPa yields 1559 N of thrust; stepping down to a 50 mm bore reduces thrust to 982 N, while an 80 mm bore increases it to 2513 N. Because this model features an 825 mm stroke, the extended rod is susceptible to bending under side loads. Utilizing an external guide rail or a guided cylinder carriage is strongly recommended to prevent premature rod-bearing wear.
As an ISO 15552 profile cylinder, it provides a drop-in mounting interface replacement for other standardized actuators. Be sure to match the PT tapered G3/8 port, M16x1.5 rod thread, and appropriate mounting accessories like FA flanges or TC trunnions. If the machinery requires the piston to maintain its position during a complete loss of air pressure, an external pilot-operated check valve or the SAIL locking variant must be installed, as standard air cushions only decelerate the stroke at end-of-travel.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI63 Standard Cylinder SAI63X825N FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. If pressure is increased to 0.7 MPa, the push force reaches 2182 N.
Yes, the SAI63X825 is dimensionally interchangeable per ISO 15552. You can drop it into existing mounts matching the standard 63 mm footprint, provided you accommodate the G3/8 PT port and M16x1.5 rod thread.
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